Finding the Fourth Proportional to 420,795.24, 580,629.36 and 239,509.95
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Solution
The fourth proportional to 420,795.24, 580,629.36 and 239,509.95 is: 330,484.99
Step by Step Solution
- Step 1: Write the proportion equation
420,795.24 : 580,629.36 = 239,509.95 : x - Step 2: Convert to fraction form
420,795.24/580,629.36 = 239,509.95/x - Step 3: Cross multiply
420,795.24x = 580,629.36 × 239,509.95 - Step 4: Simplify right side
420,795.24x = 139,066,508,982.13 - Step 5: Solve for x
x = 139,066,508,982.13/420,795.24 - Step 6: Final answer
x = 330,484.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.